Job class structure for processor class

ProcessorJob.cs

public interface IJob
{
    object[] Start(Parameters paramList = null);
}

public abstract class BaseJob
    : IJob
{
    public abstract object[] Start(Parameters paramList = null);
}

public class MainJob
    : BaseJob
{
    public override object[] Start(Parameters paramList = null)
    {
        try
        {
            // fact job operations
            Console.WriteLine("Real Operational Job...");
        }
        catch (Exception ex)
        {
            return new object[] { ex.Message };
        }
        return null;
    }
}